285 lines
8.9 KiB
C++
285 lines
8.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <numeric>
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#include <vcl/virdev.hxx>
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#include <vcl/outdev.hxx>
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#include <salgdi.hxx>
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#include "outdata.hxx"
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/polygon/b2dpolygontools.hxx>
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#include <basegfx/polygon/b2dpolypolygontools.hxx>
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#include <basegfx/polygon/b2dlinegeometry.hxx>
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void OutputDevice::DrawLine( const Point& rStartPt, const Point& rEndPt,
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const LineInfo& rLineInfo )
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{
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if ( rLineInfo.IsDefault() )
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{
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DrawLine( rStartPt, rEndPt );
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return;
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}
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if ( mpMetaFile )
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mpMetaFile->AddAction( new MetaLineAction( rStartPt, rEndPt, rLineInfo ) );
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if ( !IsDeviceOutputNecessary() || !mbLineColor || ( LINE_NONE == rLineInfo.GetStyle() ) || ImplIsRecordLayout() )
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return;
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if( !mpGraphics )
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{
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if ( !AcquireGraphics() )
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return;
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}
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if ( mbInitClipRegion )
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InitClipRegion();
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if ( mbOutputClipped )
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return;
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const Point aStartPt( ImplLogicToDevicePixel( rStartPt ) );
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const Point aEndPt( ImplLogicToDevicePixel( rEndPt ) );
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const LineInfo aInfo( ImplLogicToDevicePixel( rLineInfo ) );
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const bool bDashUsed(LINE_DASH == aInfo.GetStyle());
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const bool bLineWidthUsed(aInfo.GetWidth() > 1);
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if ( mbInitLineColor )
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InitLineColor();
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if(bDashUsed || bLineWidthUsed)
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{
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basegfx::B2DPolygon aLinePolygon;
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aLinePolygon.append(basegfx::B2DPoint(aStartPt.X(), aStartPt.Y()));
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aLinePolygon.append(basegfx::B2DPoint(aEndPt.X(), aEndPt.Y()));
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PaintLineGeometryWithEvtlExpand(aInfo, basegfx::B2DPolyPolygon(aLinePolygon));
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}
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else
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{
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mpGraphics->DrawLine( aStartPt.X(), aStartPt.Y(), aEndPt.X(), aEndPt.Y(), this );
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}
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if( mpAlphaVDev )
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mpAlphaVDev->DrawLine( rStartPt, rEndPt, rLineInfo );
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}
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void OutputDevice::DrawLine( const Point& rStartPt, const Point& rEndPt )
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{
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if ( mpMetaFile )
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mpMetaFile->AddAction( new MetaLineAction( rStartPt, rEndPt ) );
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if ( !IsDeviceOutputNecessary() || !mbLineColor || ImplIsRecordLayout() )
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return;
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if ( !mpGraphics )
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{
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if ( !AcquireGraphics() )
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return;
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}
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if ( mbInitClipRegion )
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InitClipRegion();
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if ( mbOutputClipped )
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return;
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if ( mbInitLineColor )
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InitLineColor();
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// #i101598# support AA and snap for lines, too
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if((mnAntialiasing & ANTIALIASING_ENABLE_B2DDRAW)
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&& mpGraphics->supportsOperation(OutDevSupport_B2DDraw)
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&& ROP_OVERPAINT == GetRasterOp()
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&& IsLineColor())
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{
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// at least transform with double precision to device coordinates; this will
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// avoid pixel snap of single, appended lines
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const basegfx::B2DHomMatrix aTransform(ImplGetDeviceTransformation());
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const basegfx::B2DVector aB2DLineWidth( 1.0, 1.0 );
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basegfx::B2DPolygon aB2DPolyLine;
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aB2DPolyLine.append(basegfx::B2DPoint(rStartPt.X(), rStartPt.Y()));
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aB2DPolyLine.append(basegfx::B2DPoint(rEndPt.X(), rEndPt.Y()));
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aB2DPolyLine.transform( aTransform );
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if(mnAntialiasing & ANTIALIASING_PIXELSNAPHAIRLINE)
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{
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aB2DPolyLine = basegfx::tools::snapPointsOfHorizontalOrVerticalEdges(aB2DPolyLine);
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}
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if( mpGraphics->DrawPolyLine( aB2DPolyLine, 0.0, aB2DLineWidth, basegfx::B2DLINEJOIN_NONE, css::drawing::LineCap_BUTT, this))
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{
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return;
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}
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}
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const Point aStartPt(ImplLogicToDevicePixel(rStartPt));
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const Point aEndPt(ImplLogicToDevicePixel(rEndPt));
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mpGraphics->DrawLine( aStartPt.X(), aStartPt.Y(), aEndPt.X(), aEndPt.Y(), this );
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if( mpAlphaVDev )
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mpAlphaVDev->DrawLine( rStartPt, rEndPt );
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}
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void OutputDevice::PaintLineGeometryWithEvtlExpand(
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const LineInfo& rInfo,
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basegfx::B2DPolyPolygon aLinePolyPolygon)
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{
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const bool bTryAA((mnAntialiasing & ANTIALIASING_ENABLE_B2DDRAW)
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&& mpGraphics->supportsOperation(OutDevSupport_B2DDraw)
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&& ROP_OVERPAINT == GetRasterOp()
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&& IsLineColor());
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basegfx::B2DPolyPolygon aFillPolyPolygon;
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const bool bDashUsed(LINE_DASH == rInfo.GetStyle());
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const bool bLineWidthUsed(rInfo.GetWidth() > 1);
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if(bDashUsed && aLinePolyPolygon.count())
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{
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::std::vector< double > fDotDashArray;
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const double fDashLen(rInfo.GetDashLen());
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const double fDotLen(rInfo.GetDotLen());
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const double fDistance(rInfo.GetDistance());
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for(sal_uInt16 a(0); a < rInfo.GetDashCount(); a++)
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{
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fDotDashArray.push_back(fDashLen);
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fDotDashArray.push_back(fDistance);
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}
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for(sal_uInt16 b(0); b < rInfo.GetDotCount(); b++)
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{
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fDotDashArray.push_back(fDotLen);
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fDotDashArray.push_back(fDistance);
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}
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const double fAccumulated(::std::accumulate(fDotDashArray.begin(), fDotDashArray.end(), 0.0));
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if(fAccumulated > 0.0)
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{
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basegfx::B2DPolyPolygon aResult;
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for(sal_uInt32 c(0); c < aLinePolyPolygon.count(); c++)
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{
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basegfx::B2DPolyPolygon aLineTraget;
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basegfx::tools::applyLineDashing(
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aLinePolyPolygon.getB2DPolygon(c),
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fDotDashArray,
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&aLineTraget);
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aResult.append(aLineTraget);
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}
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aLinePolyPolygon = aResult;
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}
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}
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if(bLineWidthUsed && aLinePolyPolygon.count())
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{
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const double fHalfLineWidth((rInfo.GetWidth() * 0.5) + 0.5);
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if(aLinePolyPolygon.areControlPointsUsed())
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{
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// #i110768# When area geometry has to be created, do not
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// use the fallback bezier decomposition inside createAreaGeometry,
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// but one that is at least as good as ImplSubdivideBezier was.
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// There, Polygon::AdaptiveSubdivide was used with default parameter
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// 1.0 as quality index.
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aLinePolyPolygon = basegfx::tools::adaptiveSubdivideByDistance(aLinePolyPolygon, 1.0);
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}
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for(sal_uInt32 a(0); a < aLinePolyPolygon.count(); a++)
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{
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aFillPolyPolygon.append(basegfx::tools::createAreaGeometry(
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aLinePolyPolygon.getB2DPolygon(a),
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fHalfLineWidth,
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rInfo.GetLineJoin(),
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rInfo.GetLineCap()));
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}
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aLinePolyPolygon.clear();
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}
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GDIMetaFile* pOldMetaFile = mpMetaFile;
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mpMetaFile = NULL;
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if(aLinePolyPolygon.count())
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{
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for(sal_uInt32 a(0); a < aLinePolyPolygon.count(); a++)
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{
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const basegfx::B2DPolygon aCandidate(aLinePolyPolygon.getB2DPolygon(a));
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bool bDone(false);
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if(bTryAA)
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{
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bDone = mpGraphics->DrawPolyLine( aCandidate, 0.0, basegfx::B2DVector(1.0,1.0), basegfx::B2DLINEJOIN_NONE, css::drawing::LineCap_BUTT, this);
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}
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if(!bDone)
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{
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const Polygon aPolygon(aCandidate);
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mpGraphics->DrawPolyLine(aPolygon.GetSize(), (const SalPoint*)aPolygon.GetConstPointAry(), this);
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}
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}
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}
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if(aFillPolyPolygon.count())
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{
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const Color aOldLineColor( maLineColor );
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const Color aOldFillColor( maFillColor );
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SetLineColor();
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InitLineColor();
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SetFillColor( aOldLineColor );
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InitFillColor();
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bool bDone(false);
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if(bTryAA)
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{
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bDone = mpGraphics->DrawPolyPolygon(aFillPolyPolygon, 0.0, this);
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}
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if(!bDone)
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{
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for(sal_uInt32 a(0); a < aFillPolyPolygon.count(); a++)
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{
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Polygon aPolygon(aFillPolyPolygon.getB2DPolygon(a));
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// need to subdivide, mpGraphics->DrawPolygon ignores curves
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aPolygon.AdaptiveSubdivide(aPolygon);
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mpGraphics->DrawPolygon(aPolygon.GetSize(), (const SalPoint*)aPolygon.GetConstPointAry(), this);
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}
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}
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SetFillColor( aOldFillColor );
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SetLineColor( aOldLineColor );
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}
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mpMetaFile = pOldMetaFile;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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